RC India

I just bought new stuff and tried to re-make the quad but IDK, it won't fly. See the video below and please help me in knowing what is wrong ?

Link to the video:

https://app.box.com/s/c3a0fup3wg1dpcht8111

It tends to move towards the right side.

I've done a receiver test and the values are fine.

Which flight controller are you using? If it a KK 2.1, I would recommend doing an ESC calibration and a sensor calibration. Is self-levelling on? Also, what sort of setup are you using (motors, ESCs, etc.)?

Im using the KK2.1 board with 1.9FW version.
I did the sensor calibration ( put it on a leveled surface and calibrate )
Havent done the ESC calib ( how to do it ) ?
and yes the self level is OFF.

Motors are the Mystery 2212 1000kv
ESC are again Mystery 30A ( have brand new SimonK but unable to use them as cant solder the bullet connectors to them :( )
props are 10x4.5
battery is 2200mAh 25c 3s
and yes , the X600 frame

I think the ESC calibration is the problem. Try this. http://www.youtube.com/watch?v=qAaO6lyN0HI#ws (http://www.youtube.com/watch?v=qAaO6lyN0HI#ws) And MAKE SURE TO TAKE THE PROPS OFF. (Caps intentional)

Check your motor connections, make sure you have them plugged into the kk in the correct order. If you dont have bullets, solder them directly.

This video may help with the KK board setup. Also, what do you mean that you can't solder the bullet connectors to the ESC? http://www.youtube.com/watch?v=8NAXSBCtSLY#ws (http://www.youtube.com/watch?v=8NAXSBCtSLY#ws)

follow steps,
1) make sure the ESC connection to FCK are in order .(refer connection diagram of KK)
2) correct props are put in correct motors, ie; CW to first motor, CCW to second motor, ... if you can't check it like that, just run the motors, and check whether all the props push air to the ground, if any one is turning the opposite way, you can't make it fly.

after the above steps done,
3 )calibrate your ESCs, again refer to KK board manual.
4 )calibrate sensors
5 )try to fly... if the quad tries to flip over, again go to step one, you must have done something wrong in first steps.......
6 ) even the quad must have some tendency to twitch .. but this can be adjusted by trimming transmitter channels - normal twitching is okay...

google for KK2 manual.

http://www.rcgroups.com/forums/showthread.php?t=2061620 (http://www.rcgroups.com/forums/showthread.php?t=2061620)

OK, so what happened here was the ESC calibration helped a bit .. as in the quad did get a few cm in air but them started going towards the south side while tilting.
the problem. I thought resetting the board could help ( fresh start ) . The board did reset and now the esc won't calibrate ( gives continuous beeping when i try to calibrate and the 2nd motor from top doesn't work )

Cant solder as in I have the SimonK ESC and the bullet connector but no soldering gun

When you say that the motor doesn't work, do you mean that it does not spin at all? Try arming your board and powering up without props. Check if the motors spin. I read that continuous beeping may mean that the throttle is not at zero when you power up. In your case, I am not sure what it could mean. Maybe you should check all your connections again. In the worst case, try another reset or reflash the firmware. The tilting is natural until you tune your PID gains unless it is really extreme.
You can buy a good soldering iron online. 30-50 W watts should be enough and Soldron is a good Indian company. I got their 50W iron yesterday but haven't got a chance to use it. I have been using their 25W iron for electronics work and it is good.

EDIT: I think I found the problem. Your throttle channel may be reversed. Try another receiver test.

reciever says all values are zero

and I dont think the ESC is being calibrated now : Series of events;
1> Throttle on full, TX ON
2> Board connected to power M1 ESC put in the first port ( was disconnected before )
, as i press b1 and B4 together .
3>Board shows " throttle 'something', hear 2 beeps.
4> Put throttle knob to zero ( buttons still pressed)
5> Hear 3 short and one long beeps ( one you get when you start the board from start and hear the ESC)
6> NOW, `when i arm the board and give throttle , the M1 doest rotate for some time , after few seconds i get a few beeps and then it starts to move.

what the hell is happening here ?

and yea, the receiver values are at zero.

I just noticed . at 30% constant throttle the M1 motor keeps increasing speed , and that was the motor itself that didnt work ( i switched between to motors to see if its the motors fault or the M1 ports, and its not the motors fault. )


8375066843, its my number, If someone can help me in this regard i'll be HIGHLY thankful :)

well the throttle  is not yet calibrated.
pls refer the KK manual thoroughly.
and follow the procedures.
if throttle is calibrated properly , all the motors should start at same time.
09656000639
Regards,
SPN

how do i calibrate the throttle?

+ are you sure that the connections of motors, spinning directions of motor and direction of flight control board are correct?

please refer the attached image.

Yes yes , everything is correct. the ONLY issue that im facing here is that the M1 motor increases in speed on its own and rest stay according to the throttle speeed. how do i solve that > Ive calibrated my ESC for 5 tiimes now .

You said that you got 3 short and one long beep while calibrating. Perhaps the M1 ESC is not calibrated properly. Your sequence of steps is not very clear. I would suggest leaving the main LiPo plugged in throughout. Just unplug the M1 wire as that is where the KK board receives power. Turn on the TX, put throttle on full. Hold buttons 1 and 4 before plugging in the M1 BEC and then follow the usual calibration process. When you say that Motor 1 increases in speed do you mean that it continuously accelerates or that it is faster than the other motors.

innially they're the same. then it increases and accelarates for some time then is stable at high speed

That seems like a pretty strange problem. I think it has something to do with the way you calibrated your ESCs. Check your LiPo battery charge. Low charge can cause erratic behavior in the motor speed. How can you tell that it is faster? Is it a major visible difference or is your quad trying to flip when you take off?

can u post a video of that situation,

Videos:

Calibrating:

https://app.box.com/s/1hkp1rtg274e9eh90eih


Speed issue:

https://app.box.com/s/ku7zrq3tso2g5qzzu7oy

one motor unnecessarily speeds up, huh ?
just check another ESC+motor with this motor 1 o/p of flight controller - to check is this a problem  of uncalibrated ESC or wrong Flight controller o/p .

.. o/p as in ?

I tried to change the motor, and the other one behaved the same way too

Try swapping out the ESC if you have an extra

I dont have extra ESCs but i tried changing them among them selves. The Esc at the M1 port always speeds up .. I think its someting to do with the board ?

may your rx stick not centering while at rest state.
to check that  move rudder and pitch sticks and watch the motors are responding correctly.

or auto leveling will be problamatic(accelerometer calebration issue)
to check that tilt M1 updards/downwards will the motor(M1) reducing/increasing speed.

i move the sticks on the tx and the motors move fine as they should but during the start the M1 speeds up

hold the quad above your head firmly, give a 30 to 50% throttle, the motors should start spinning.
1) all motors should provide lift, ie; the props blows air to the ground.
2) tilt the quad to each angles, pitch , roll first (to front ant back and then to side ways.)
    while doing this the motors on tilted side should speed up resisting the tilting action.
3) now move the quad in yaw angles, ie; rotate it to left side and right side, diagonal motors should speed up resisting this yaw action.

if any of above conditions not met , you have some setting problem in the KK board.

the M1 moves so fast i can hardly make any of the speeding up or slowing down ... What shall i do ?

anyone ? I also tried to run it alone ( all 3 disconnect except for the one ) and it still accelerates ... ive resetthe board too now, still the issue is there . help ?

pls try updating the firmware on kk2 board.

its already 1.9, the latest i guess

no matter how much I reset or calibrate the ESC now, the speed  issue is still there ... help anyone ?

Could someone tag or call VC sir here ?

sir, pls post your PID , settings.
some one can help you.
I can't give much help here, as I haven't yet used this board.

also, If i am right, I think there is an option to check the sensor o/ps on a KK LCD board. pls check whether the sensor o/p s are correct.
also try another ESC to the motor1 pin.

what is o/Ps ???

ive tried all the Permu and combi of this , anything connected to the M1 port of the board has issues .

o/ps means - outputs - lol.
well, if any ESC behaves alike in motor 1 o/p (sorry output) - there might be problem in PID settings or sensors.

P.S you don't need permutations or combinations to fly multirotor, really :giggle:

LOL ok :D so what is the issue  ? it happens even on factory values

A video showing the issue :

https://app.box.com/s/97ejz7e5a706sym1vavs

Try flashing a different FW. Try Steveis 1.18S1 or 1.6++AIO.

https://www.youtube.com/watch?v=2wotkISN05U&feature=youtu.be (https://www.youtube.com/watch?v=2wotkISN05U&feature=youtu.be)

give it a try, as I already said , flash some old f/w.
 have you calibrated and tested your sensors yet ?

sensors are calibrated . I cant flash anything as i dont have the tools to do it ..

well, you can check the sensors, are working, I think there is such an option on board.

HOLY ... just reset PI values settings and the issue vanished XD :D

Thanks RIBZ :D

though it has the tilting issue now( tilts to the south direction ) . How do I solve that ?

you have to thoroughly go through the manual, and tune the PID settings, until your quad is balanced. PID values differ for each setup, so you are on your own there.

ok , and generally whats to be noted for PI settings ? like higher the better or what ?

if the values are higher, the quad will be more level, and will aggressively, come back to normal level
but if the values are very high, the quad will oscillate rudely.
very low values makes you able to fly in acro or sports mode.

pls wait let me find link to a good PID setting manual

thanks man :)

http://www.instructables.com/id/A-SK450-Dead-Cat-Quadcopter-to-Call-Your-Own/step19/PI-Roll-and-Pitch/ (http://www.instructables.com/id/A-SK450-Dead-Cat-Quadcopter-to-Call-Your-Own/step19/PI-Roll-and-Pitch/)

that frame is 450 . i have 600, change in value is needed ?

tried uploading a complete pdf manual - but it's over sized.
now here is a small one :

pls see last page of attachment one usually can fly with the default PI values, in normal cases.

yes surely needed, even if the frame was, 450, you will need a PI tune to make a stable flight

i tried moving the values here and there ... saw no difference ???

I dont get it , no matter how much tweaking i do, it just doesnt take off ! Always tilting towards one side or the another ... guys i dont know what to do :'(

Any KK2 experts in NOIDA ?

have you done the over head test ?
pls check response to the transmitter.
then response to resist movements (quad firmly held over head).

So i was trying to make a quad ( again after an year ) and things arent going very well :



see this thread for the issues :

http://www.rcindia.org/multirotors/re-made-quad-somethings-wrong/new/#new (http://www.rcindia.org/multirotors/re-made-quad-somethings-wrong/new/#new)


is there anyone who can help me in reference to my issue exactly ? I'm in Noida btw.

please, Bhavesh, VC Sir ? Anyone ?

hey, why you open a new thread, did I done anything wrong back there ???
gonna try to fly with an old KK LCD for you, will notify you along with how I set it up (*I forgot it*) pls wait - I will be online

@parichya
What is the point of opening a new thread?  :headscratch: I am sure the current thread is not suffering from a lack of attention. All that you are doing is making things harder for yourself and people who are trying to help you since they will have to read through the previous thread and then choose where to post replies. This only causes a lack of continuity and makes it harder for you to keep the information consolidated.

well parichya.gautam  sir, pls continue with the old thread and close this thread.
and if you only want help from VC sir, why not PM him ???

If the fc not in auto level then it should tilt when external forces or rx sticks applied.

you are using ct6b? i am using it and have been facing the exact problem.
these things have analog trims and stick centring is a big problem.

I'm sorry if it was confusing, this is only for people in noida who could help me , the link to the older thread is so that they can understand the issue.

My main thread is the earlier one only.

ya , i have ct6b ... good to know that im not alone :P

So you found any answer to it ?

akhilzid : couldnt get you ..


yes sooraj, did it , and frankly i couldnt make out if the quad was resisting it ...

yes rohan, you are correct, ct6b will not centering accurately, so this one always need a continues input(Roll & Pitch) to balance.

its a disaster , when i try to balance the trims using sub-trim menu in t6config and when i give a little jerk to the right stick there is again a variation .

@rohan,centering issue in ct6b is a hardware problem. sub trim cant solve centering issue because the center value changes time to time while we moving and releasing sticks.

AND YES, the motors aren't showing any speed reaction when I tilt the quad . They stay at the same speed .

Go to the menu, select gyro, acc bubble and see wheather the sensors are working.

Seems like the board problem.  :(

NO!, they're just stable there, not moving :(

does anyone here have the KK2.1 board ?

So, when you tilt the quad there is no speed difference right?
Just check the gyro and acc bubble on your quad.You will know weather the sensors are working or not.

There is NO speed difference . And the bubbles just stay there when i tilt the board.

Its the board.The bubble should move when you tilt.

nope, nothing. just stays there .

So the sensors of your board are not working. :(

i thought so :'( will have to wait till 5th for replacement now.

do you have a KK2.1 board ? or know that anyone has ?

I've PMed you my contact number. You're welcome to come down to my place over the weekend, let's try to figure out what's going wrong with your quad!

Thanks a lot man :)

Although i wanted to know that The sensors of my board ( Sensor check menu ), the values dont move. And the Acc Bubble and Gyro Bubble stay there when i tilt the board ( plus motors dont show speed difference when board is tilted.
Possible case of bad board ?

Have you ever made flight with this board? if yes, the sensors are damaged now.
If no, the sensors may be damaged or it's a manufactuaring defect, if you bought from LHS, return it for replacement.
otherwise you can try re soldering the SMD acc. and gyro motion sensors using  a hot air SMD workstation (go to mobile technicians or SMD  servicers) - If that too does not help, thoughrouly check the board for any missing components near the accelero and gyro ICs (capacitors or resistors may me missing due to previous crashes).
the final attempt will be to replace the motion sensors.

But before trying any of above, please try changing the firmware on your board to some older versions or reburn the current version itself

I actually got it a guy I found on this group ( good prices BTW ) . I dont have anything to reflash the firmware. I guess Ill just take it to him and let him do his stuff ? If it works after re-flashing, cool, else he would do a replacement.

Has anyone checked the comments on the very 1st YouTube video that was posted on this thread?
http://www.youtube.com/watch?v=qAaO6lyN0HI#ws (http://www.youtube.com/watch?v=qAaO6lyN0HI#ws)

From the comments, It seems that many users had strange issue while/after calibrating ESC's this way.
Never seen anyone calibrating their ESC's like this.

The most widely used way of calibrating the ESC on a KK2.1 setup is shown in the following video:
http://www.youtube.com/watch?v=qAyxyLMr6vg#t=141 (http://www.youtube.com/watch?v=qAyxyLMr6vg#t=141)
Start watching this video from 2:20 minutes

This is the sort of tool you would need to flash the firmware: http://www.ebay.com/itm/261441182745 (http://www.ebay.com/itm/261441182745)

well, if the guy you bought the board from is easily accessible, that will be your best choice.
otherwise you can buy a USBASP and reflash the board yourselves - Investing in a USBASP is not a waste, this tool is handy if you frequently use an atmel microcontroller based RC equipments (like KK boards, ESCs , OSD ........)

Hmm the main difference seems to be the timing of pressing the buttons. I had not seen the comments and never realised that it could cause a problem like this. I was under the impression it was the correct method. I apologise if it is the cause of your problems Mr. parichya.gautam.

I dont think the calibration was an issue. The sensors of the board dont work.

I had the KK2.0 earlier and i remember that in the sensor test, when I tilted the board, the values used to change.
It doesn't happen in this board. Plus the no bubble moving in the Acc and gyro bubble option.

I'm pretty sure the board isnt working the way it is supposed to.

ASLO, while playing with the PI values, from setting them from everything to Zero to random values to the higher ones at 250, I didnt see any difference in the movement of the quad. It the same everytime .

And also, regarding the calibration, I used it both ways, ( Connecting the M1 and other was connecting the battery ports ) didnt see any difference .

alright ...

Please don't open multiple threads on the same issue. It confuses everyone.  And certainly do not start a topic with the name "Help needed" :banghead:  If that was a good idea, half the threads on this forum would all have the topic name "Help needed".

Please start by reading the common sense guidelines listed here, and make specific note of #12

http://www.rcindia.org/rc-india-forum/forum-usage-tips/ (http://www.rcindia.org/rc-india-forum/forum-usage-tips/)

ya, I realized it later. Will take care next tme :)

i have multiwii se v2.5 flight control board brand new... if u r interested than pm.

no man, happy with KK :) thanks though .

wlcm

Sensor values stuck at 512, any expert on KK2 ?

Is it still like that after, firmware flashing ???
Have you tried replacing the sensor ICs ?

yes, even after fladhing its like that.

Replacing sensor ICs ??

Yup, Now we have to accept the fact that, something is wrong in the sensor IC or it's circuit -
Make a close examination of PCB tracks and components for cuts and faulty joints, Nothing like that means the ACC. or Gyro. IC is damaged.

i have no clue on that.

Could someone tag 'Ribz' here ? I got the board from him !

Yes, I see lot of posts from that guy (Ribz) on the sale thread.
He is from Delhi I think.

Is that a new board or used one?
Is it faulty on arrival ?

ya he is from delhi.

If you see my quad, I had issues from the day-1 ( the reason i started the 'Re-Made quad, something wrong' thread. Its was only after some time that I realized the problem was with the Sensors itself.
I talked to this guy and he says that THE board is fine ! .... what Am i to do now ?

Well ,talk with him for replacement if it is new one, or Give it back.

are all the values in all axis of sensor test menu not changing ?

I did ! he says that the board is fine.... I'll talk to him again.
Yes everything is stuck at 512 and neither the gyro bubble nor the acc bubbke move when I move the board!!!

Is this board used one ?

well I wasn't able to fly it , all my time was used to figure out what was wrong ( it didn't even come out of the hard case too ) .
So, practically no, its not used ...

No,
I mean, is this bought as NIB or used by previous owner ?

NIB ?

I bought the board if thats what you are asking ?

NIB - New In Box (off the shelf )

well, its the way I got it, Screwed in the hardcase.

So, something will be wrong in sensor circuit - some times it will be small faults .

idk man....

When I payed for the board, I expected a working piece. its not one so I should get a replacement/refund right ?

that would be best option - how much did you paid for the board ?

2350

What ???
2350 ? , Why? , LHS sell it for low price.

LHS ? it was with the hard-case ... so 2k for the board.

LHS - Local Hobby Shop.

Pls don't cry when seeing this -

http://www.ebay.com/itm/KK2-15-Multi-rotor-LCD-Flight-Controller-V1-9S-Protect-Case-KK2-0-KK2-1-/261671486051?pt=Radio_Control_Parts_Accessories&hash=item3cecd60263 (http://www.ebay.com/itm/KK2-15-Multi-rotor-LCD-Flight-Controller-V1-9S-Protect-Case-KK2-0-KK2-1-/261671486051?pt=Radio_Control_Parts_Accessories&hash=item3cecd60263)

and

http://www.ebay.com/itm/KK2-1-Multi-rotor-LCD-Flight-Control-Board-with-Version-1-9s-Firmware-MULTIROTOR-/121386659927?pt=LH_DefaultDomain_0&hash=item1c43357057 (http://www.ebay.com/itm/KK2-1-Multi-rotor-LCD-Flight-Control-Board-with-Version-1-9s-Firmware-MULTIROTOR-/121386659927?pt=LH_DefaultDomain_0&hash=item1c43357057)

... mail ...

replied .

THIS IS IT.

next whenever I'm buying, i'm gonna ask you first XD

but wont the boards cost 2.4k if I go my the INR conversion ?

Sent PM

No 25$ is only less than 1600 INR  (:|~

oh ... :P :D

Complained against the guy here:

http://www.rcindia.org/rc-outlets-and-resellers/this-guy-ribz (http://www.rcindia.org/rc-outlets-and-resellers/this-guy-ribz)